APA citiranje

Varona, B. P. (2011). Emphysema: Fighting to breathe. HealthToday Philippines.

Chicago Style (17th ed.) Citation

Varona, Bernice P. "Emphysema: Fighting to Breathe." HealthToday Philippines 2011.

MLA citiranje

Varona, Bernice P. "Emphysema: Fighting to Breathe." HealthToday Philippines, 2011.